Added support for rendering resources (r279451).Fixed layouts during scroll causing jittery scrolling when dragging the scrollbar (r279564).Fixed CSS scroll snap to allow scrolling to the middle of snap areas that overflow the snap-port (r279364).Changed scroll-snap-align to use the box's writing-mode when the box is larger than the snap-port (r279714).Unprefixed :autofill pseudo-class (r279457).Included container's writing mode to get grid item's margin (r279278).Improved computation of intrinsic sizes of flex items with aspect ratio (r279286).Fixed CSS style sheets loaded by HTMLLinkElement to fall back correctly when the charset is an invalid encoding name (r279383).Fixed the CSS parser "consume declaration" algorithm to handle whitespace correctly (r279358).Changed to match the CSS specification which prohibits numbers with a trailing decimal point (e.g.Changed :link and :visited pseudo-class selectors to not match elements (r279818).
Changed to not clamp flex base size with min-height, max-height, min-width, and max-width (r279271).○ Fixed the Scope Chain sidebar panel to not strip repeating whitespace from strings (r279294) ○ Autocomplete var() and attr() values in the Styles sidebar (r279502) ○ Added support for function value completions in the Styles sidebar (r279422) ○ Fixed Details sidebar navigation items wrapping to a second line (r279613) Changed the sidebar panel and navigation bar to layout asynchronously during resize (r279790).Added contextual documentation for CSS properties (r279510).Note: On macOS Big Sur, this release requires enabling GPU Process: Media option from Experimental Features under the Develop menu to address issues with streaming services. Get a sneak peek at upcoming web technologies in macOS and iOS with Safari Technology Preview and experiment with these technologies in your websites and extensions. Apple has released Safari Technology Preview 129 to developers for testing.